Sectional mold for concrete wall construction.



' M. R-MO'RRILL. SEOTIONAL MOLD FOR CONCRETE WALL CONSTRUCTION. APPLICATION FILED 00125, 1909. 1,032,419, Patented July 16, 1912.

5 SHEETS-S IIEET 1.

D. MOERILL. SBCTIONAL MOLDTOR GONGRETE WALL CONSTRUGTION.

APPLIGILTION FILED OUT. 25,:-1909.

' Patented. July 16, 19,12.

5 $HEETSSHEET 2.

mm mm a d \INVENTOR.

. WITNESSES.-

G 'ATJTORNEY.

M. D. MORRILL/ SECTIONAL MOLD FOR CONCRETE WALL CONSTRUCTION.

, APPLIOATIOZ)! FILED 0GT.Z5, 1909.

Patented July 16, 191-2.

5 SHEETS SHEET 3.

IN VENTOR.

WI TN ESSES ATTORNEY.

M. D. MORRILL'.

SEGTIONAL MOLD FOR 'OONCRETE WALL CONSTRUCTION,

APPLICATION FIL BD 00T.25, 1909.

Pigiente July 16, 1912.

Mum ".5.

WTNESSES M. D MURRILL. MOLP FOR CONCRETE WALL GGNS'IRUOTION, APE';.-i

SECTIONAL GATION FILE]? GL'FLTQEJ, 1309v Patente July .16, 1912.

out?

Q/Vi hi woes micron Dama- MORR'ILL, or wasnme'ron, msrmc'r o1? COLUMBIA.

sncrxonan monncroa consume wAm. CONSTRUCTION weenie.

Specification a Letters Patent.

- Patented July 16, 1912.

Application filed October 25, 1909. Serial No. 524,510.

To all whom it may cmwern: j

Be it known that I, MILTON DANA Mon- HILL, a citizen o'fthe United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Sectional Molds for Concrete Wall Construction; and I do declare the fol-- lowing to be a full, clear, and exact description otthe invention, such as will enable others skilled in the art to which it appertains to make and 'use the same, refer ence being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

lily invention relates to molds or forms for construction of concrete walls and the like, and it has for its object to simplify the reference being bad to the accompanying drawings forming a part hereof and in which- Figure 1 is a perspective of'a .mold embodying features of my invention, the mold being partially filled with concrete; Fig. 9 is a perspective of parts of opposite sides of the mold, and showing one of the spacing cores and meansfor locking the parts to- 'gether; Fig. 3 is a detailed perspective of a part of two plates or sides of the mold illustrating the manner of looking them together; Fig. 4. is a perspective-of parts of several lates .of the mold, illustratingth'e corner lock and manner of locking the parts together at the corner. Fig. .5 is a perspective of opposite plates of a mold and lllustrating one form of core for forming.

- construction of the molds in sections so that the vertical ventilating lines in the wall,

* their parts may be readily assembled and parts being broken away for clearness; Fig. taken apart and reassembled as the building 6 is a plan view of Fig. 5 with the capprogresses, the construction being such that washer to the core removed and the core in the parts will be securely fastened together section; Fig. 7 is a plan view of a modified and braced when assembled, and which also form of core construction for forming the admits of the parts being compactly packed vertical fiues; Fig. 8 is a side elevation of for shipment or storage. 1 parts shown in Fig. 7 Fig, 8 is an enlarged It has further for its object to provide detailed sectional. view of the valve conimproved means'for locking the sections of trolled end of the tube to the flexible collapsithe' mold together at their joints,;and to proble core; Fig. 9 is a perspective of parts of vide in connection with the locking means several side plates of a mold, showing a a core for spacing apart the sides of the brace or stifi'ening bar applied at the joints mold while the mold is being filled with conof the parts; Fig. 9 is a detailed view of a crete, the holes formed by the cores, after portion of Fig. 9, in side elevation, with two the mold is removed, being closed on the of the mold side plates in section; Fig. 10 exterior and interior by suitable rosettes or is a perspective of several floor or ceiling, filling pieces. forming-plates with one of the supports for It has also for its object to provide imthe same, and showing the manner of lockproved means for forming vertical ventilating theparts together; Fig. 11 is a perspecing and insulating flues 1n the Wall in the tive of a portion of the completed wall,showprogress of building the wall. ingarosette in position to close on the outside It has also for its object to provide imone of the transverse openings in the wall proved means for connecting the sections formed by the core; Fig; 12 isa side view of the mold together at the corners, both of a portion of the wall and several plates of inside andoutside, or either so as to give the mold, illustrating the manner of shift fi firmness and stability at such points, and ing the plates from one position pp another also to make it possible to form cove or position as thebuilding of the all rorounded corners. grosses; Fig. 13 is a sectionalview of a media It has also for its object to provide imlied form of-ineans for supporting. a trans proved means for securing to ether plates versespacing core and locking the mold j constituting a base or form in orming concrete floors or ceilings of. the building.

To the accomplishment of the foregoing and such other objects as may hereinafter of another modified form of such plates" together; Fig. 14 is a sectional view parts Fig. 15 is an end view of Fig. 14; Fig. 16 is a sectional view of another modified form of;

appear the invention consists inthe features hereinafter particularly described and them sought to be clearly efined by the claims,

means for supporting a spacingcore. andil locking the mold plates to, ,n'ather}-' Fig; ll is a side or end View of Fig. 16; Fig. l d-"is a sectional view of another modified formof .ing core in position; Fig. 21 is a sectional view of the same; Fig. 22 is a perspective view showing the manner of applying inner and outer corner blocks to the mold plates;

Fig. 23 a perspective view showing the manner of applying a spacing block betweenadjace'nt plates; Fig. 24 a detail sectional view showing the manner of applying a bracing support for the lowermost sidewalls of the mold; Fig. 25 a cross sectional view on the line 25-25 of Fig. 24; Fig. 26

a detailed view showing the preferred methodof hinging sections of the mold sides together; Fig. 27 a cross section on the line 2727 of Fig. 26; Fig. 28 a plan view looking at the end of the core illustrated in Figs. 16 and 17; and. Fig. 29 is a perspective of the cap-washer, full size,

' used with the spacing core.

In the drawings, thenumerals 1 designate the side plates-or walls of the mold which preferably are formed of metal and pro vided with marginal flanges a, which have rounded corners, and which are adapted to rest one on top of another with their adj acent flanged edges together. The inner and at the junction of the plates, said spaces be" outer plates are spaced apart by cores 2' made of suitable material 'and, formed with reduced ends 3) and heads 5 of smaller diameter than the central portion of the core.

" These spacing cores are located so that their reduced ends will pass through the spaces formed'by the round corners of the plates ing suflicientlylarge to permit the reduced ends and the'heads of the core tdpass there- 1 through without permitting the 'core to pass through; Over the projecting ends of the cores-=are placed cap-washers 3, preferably 'of metal, which are formed with tapering slots 0 adapted to receive the flanges a of'the side plates of the mold. Forked'or bifurcated wedges 4 are forced between these washers and the heads 5 of the core so that the side plates and cores will be tightly clamped together, and the tapering slots of the caps will draw the plates closely together, thus making close joints and securely holding the parts together with the oppositely disposed side plates-spaced apart by the cores. The bifurcated wedges 4 are preferably made of wood and have each a bolt Li passing through the same so as to prevent the wedges from splitting, and the washers-3 are preferably formedwith" recesses 19 to'receiv-e a tool for releasing the washer when the parts are to be separated.

At the corners of the molds,-' w h ere the side plates extend tat right'anglesio each -"other, the inner plates are connected together by means of vertically extending bars or blocks 8 which are formed with angle straps 9 between which and the flanges of the side plates are fitted wedge shape keys 10 so that by driving the keys into position the the other. The faces of these corner blocks toward the inside of the mold are curved as shown so as to form cove shaped corners where one wall joins the other. At other corners of the mold the plates may be clamped together by means of angle plates 6 formed to straddle the flanges of the plates and to receive wedge shaped'keys 10 which by being driven into place will draw the parts closely together and securely lock the1n in position. Instead, however, of using the corners a corner 'baror block 8, as illustrated in Fig. 22, provided with angle straps 9 and wedge-shaped keys 10 so that by driving the keys between the angle straps and the flanges of the side plates said plates will be drawn tightly against the corner block so as to clamp the parts tightly together, and

block may be made concave as illustrated so For the purpose'of shifting the position of the plates of the mold from one position to another position, say from below to a higher position, as the building of the wall rogresses, I connect adjoining plates together by means of rods 23 passed loosely through ears 23 projecting from the plates, and connect such rod of an upper pair of plates to a corresponding rod of a.lower set of plates by means of rods 21 which are provided at opposite ends with claws 22 enconnection between the rods 21 and rods 23, thus permitting one set of plates when un-' olamped'to be raised above thenext upper set of plates and into position to form an upper extension of the mold forcontinuing the wall construction, as illustrated in Fig. 12 of the'drawing. For the purpose of disthe parts of the mold are takenapart, the

posite sides toeach other as illustrated so that when one of the rods 23 is withdrawn from the claws the rods 21 may be turned into an outward position so that their jaws may be readily disengaged from the other rods as 'Will be ,apparent. These rods "also serve to brace the walls of the mold; Ifdesired, metal angle bars 49 may bep'laced along the vertically disposed ,flange's a of the mold plates 1 against the washers 3 and held in place by the wedges 4: so as to insure the plates 1 being'kept in roperalinemenhone with the other, one flange otthe angle bar being formed with as to form a round exterior corner to the wall.

side plates and the corner blocks will be drawn together and securely locked one to means last described, I may employ at these in such case the inner face of the corner circling the rods 23 so as to form a hinged engaging the rods 21 from the rods 23 when 5 claws 22 of the rods 21 are. slotted on. opi mantra slots 50 to receive the reduced ends of the cores 2,,as illustrated in Fig. 9 of the draw-' or cores '35 whichprefera ly are made of metal with one part overlapping the other part as illustrated inFig. .6 so as to render the same expans'ibl'e and collapsible in cross section throughout itslength. For the purpose of expanding orcollapsing this core a. bar 41 is located Inside thereoit and capable of vertical movement therein being guided in its vertical movement by 01' s42 loosely encircling diverging members of-the bar so that when said bar is moved in one direc-' tion the sore will be expanded and when "moved in the other direction the core will be contracted. This core is suspended in posi-- tion byuneans of a bar 37 passed through the upper partfof the core and through. the depending flange of the core cap or cover 36 and resting on top of the plate 1 of the mold, said bar 37 being formed with an angular end between which and the flange (1 of the plate 1 is driven a wedge key 10 so as to clamp the parts together as illustrated in Fig. 5 of the drawing. lVhen this core is to be withdrawn itis only necessary to remove the wedge 10, withdraw the supporting bar 37,-lift ofi? the cap 36,'qperat e the bar 41 so as to contract the core, and then lift the latter out of place and locate it in position for the next higher'section of the .mold. In Figs. 7 and 8 of the drawing is illustrated a modified form of this collapsiblecore and which consists of a cylindrical shaped tube 51 of suitable flexible material impervious to air or liquid, adapted to be dilated or expandedzby introduction f compressed air or a suitable liquid. Tlis tube is secured at its opposite ends by bidding inturned portions of the tube as indi-' cated at 52 to a centrally disposed tube or pipe 53 which at its upper end is provided with a coupling 54 through which passes a bar 37 adapted to rest on the top edges 01 1 the side plates land formed at one end with an L-shaped p: it between which and the lat eral flange a oi the plate 1 is driven a wedge 10 so as to bind the parts together. The lower end ot" the pipe is provided with a valve-casing 54 formed with a nozzle 55 opening into the tube and provided with a /flap valve 56, and also provided with a valve 57. WVhen compressed air or a liquid is introduced into the pipe 53 it: passes through the nozzle 55 into the flexible core and dilates the same. When the'core 51 is to be withdrawn a rod 58, whichmay be connected to"an.arm59 and arm 60, is depressed so as to cause arm 59 to bear against one end of the valve 56 with which it may be pivot-ally connected at 61 and at the same time throw the arm 57 against the flap valve collapsible core 51 and out through the lower end 62 of the pipe, thus permitting ,the tube to collapse so as to be removed. 'By revolving the pipe 53 the material of which the core is composed may bewound around the pipe, and thus aid the easy withdrawal of the core. Any construction of valve per itting the outflow of air or liquid at the ime desired may be employed.

- In 10 of the drawing is illustrated means for supporting the plates lfin posi tion to servefas a support for the cement which will cohstitute the ceiling or floors of the building/ The means consists of atube 26 which at its lower end fits in a split sleeve 27 which will rest upon a lower floor or suitable base and in which the tube will be clamped by means of a clip 28 and a wedge key 29, said wedge when driven into place contracting the split sleeve so as to hold the tube 26 firmly in position. In the upper end of the tube-is fitted a stem 31 formed with a shoulder 31 which rests on topof the tube 26, the upper end of the stem 'being formed with a head 30. Encircling the stem 31. is one of the cap-washers 3 in the tapering slots of which fit the flanges act the plates 1, and between the washer 3 and the shoulder 31 is driven one of the bifurcated wedge keys 4 which will press the washer 3 so that its taperingslots will draw the edges of the plates 1 closely together and clamp the parts in position. \Vhen the cement-or concrete has set, the keydris withdrawn, which loosens washers 3 and"permits plates 1 to be removed without disturbing the vertical supports, and the opening which has been formed by the head 30 will be filled by a rosette 40 or with cement so as to make a uniform surface.

In Fig. 13 of the drawing I have illus: trated a modified form of the core for spacing apart the opposite sides of the mold. /111 this form the core 2, made of wood, is provided. with a band 2 to, prevent the core from splitting, and a stem 17 screwed into its end is provided with a transverse pin 17* with which will engage theforked end of a cam lever 18 so thati when said lever is turned into the position illustrated in Fig. 13 it will'exert an outward pressure on the core 2 and an inward pressure onthe washer 3 so as to draw the parts together and clamp them in position substantially in the same manner as is done by the wedges 4 in the form first described. The cam lever 18 may also be employed for detaching the washer 3, when the parts are to be separated by causing its end 20 to engage the top wall of the slot 19"formed in the washer 3 as illustrated in Fig. 4i for the purpose of disengaging said washer from the plates 1.

similar to that illustrated in Fig. 13 except that the shank of the screw 17 is slotted and .a wedge key driven through the slot so as to draw the parts together as illustrated in said figure.

In Fig. 1G is illustrated another tor-mot clamp for holdingthe plates 1 inposition. In this figure the spacing core 2 is of metal and tubular. The washer '11 which grips the flanges a of the plate 1 is formed with a central tube 11 the lower portion of which converges and is split and has outwardly extending lugsS l. A metallic pin or plug 12 is driven into the tubular extension 11 of the washer and when it reaches the converging split portions of the tube 11. it spreads them apart and causes the lugs 33 to bind against the spacing core 2 so as to hold the severe: parts together. The outer endof the core 2 is closed but has a centralopening 32 therein for the passage of the depending tube 11 and also is formed with slots 32 for the passage-of the lugs 535 when it is desired to separate the washer clamp 11 from the .core 2, the lugs 3 at other times being out of register with the slots 32 so as to prevent the withdrawal of the washer clamp entirely from the core 2.

In Figs. 18 and 19 is illustrated amodified form in which the spacing core 14 is made of concrete and-formed with a central recess 14 in its ends to receive the central tube 13 0f the washerlS, theflowe'r portion of the tube being split longitudinally and made to coi'ivergeahd having at the ends of the split portions lugs 14 adapted to bear against the walls or the. recess 14 when the lower members of the-tube are expanded by driving in the pin or plug 12 thus holdmg the core in place. The washer 13 in this .form as well as in the other form has taper 4 .ing slots to straddle the flanges a of the side plates 1 so as to draw the plates together. The recess 14* in theconcrete core 14 may be strengthened by means of a. reinforcing ring 34 molded in the core around the recess 14 as illustrated in Fig. 18 ofthe drawing. In this form the concrete core may remain in place in the molded wall and its exposed face may have any desired fanciful configuration as indicated by the numeral 41 so as to present an ornamental appearance.

In'Figs. 20 and 21 of the drawing is illustrated a. modified .form of mold plates and manner. of securing them and the spacing cores together. Pare torrhed of wood-and provided at their edges with metal capsor facings 42 which will be formed'with tapering holes 43 designed to receive tapering pins 44 projectingfrom one face of the metal Washer .45 which is formed with a central opening 46 for the passage of the'reduced end I; of

the spacing core 2. A bifurcated wedge 4 is In this form the side plates" driven between the washer 45 and head 5 0t the core so as-to draw together the core, the side plates of the mold, and force the tapering pins 44 into the holes 43 so as to draw the parts together. It may sometimes happen in building a wall that there will be a space in its length too short to receive one of the plates of the mold. In such case a filling block 47 is provided for such space so as to fit between the ends of two adj ace nt plates of the mold as illustrated in Fig. 23 of the drawing, said filling block and plates being locked together by a metal strap 48 and'wed-"ge blocks 49 driven between the flanges ot the plates 1 and the turned ends of the straps 48.

In Figs. 24 and 25 is illustrated means for firmly supporting the lowermost sections of the. side-walls. It consists of a member 59 formed with tapering sides and tapering top and adapted to fit between theside walls 1 of the mold. It isattached to a crossbar 59 which has bent ends 57. Blocks 58 each formed with a recess 9 to receive the bottom flanges of the side-walls and with slots h to receive the end flanges of the side-walls, are

placed at opposite sides of .theside-walls, and then Wedges 58 are driven between the blocks 58 and bent ends of the plate 59 so as to draw the plates together and securely clamp the several parts in place. This gives stability to the mold at its base. When the sides of the molds are to be removed, the wedges 58 are driven out ot place, the

-bloclrs 5S withdrawn, the side-walls 1 removed, and then'the tapering member 59 driven end-wise out of the body of the concrete.- This same construction may be em ploycd at the top of the mold sections to give stability to the upper parts of the mold while being filled with concrete, in which case the position of the member is merely reversed fromthat illustrated in Fig. 24.

In Figs; 26 and 27 is illustrated the preferred means for hinging units of the side-- walls together so that one section of units may be shifted from a lower to a higher position in the progress of constructing the wall. In this form clips'fiti are applied so as to straddle flanges aof the side-walls 1.

One end of the clip is formed with a threaded opening 54 to receive a threaded bolt 52 the end of which may also. enter corresponding openings formed in the flanges-of the side-walls, and a wedge 55 is driven between theother end of the clip.'and the adjacent'flange of the side-walls so as to hold the'cli'p and b'oltin position and at the same time lock sections of. the sidewall together at such points. A metal strap 53 connects together two of the bolts 52. insuch man- 'ner as to turn on the bolts so as to serve as a hinge connecting sections of. the sidewalls together. one section or a number of connected sec- This construction enables the side-walls to be swung from one position into another position in a manner similar to that illustrated and described Awi-th reference to Fig. 12 of the drawing.

Under this construction any number of units of side plates or walls of the mold may a be connected together so as to be swung fronrone position into .another'. It is ob- ;yious that this same feature of hinging of iiiiit sof the side-walls together so as to be changes in such details can be made. without departing from the scope of the invention as defined in 'theappended claims. Having described my invention and set forth its merits what I claim is 1. A, sectional mold for concrete-wall con struction comprising removable side walls,

a spacing corepassing transversely through oppositely disposed side-walls, washer-sapplied to the ends ofthe core and formed with tapering members engaging parts of the side-walls, and wedges engaging 'parts of the core and bearing against said washers to lock together the si mg core, substantially as described,

2. A sectional mold for concrete wall construction comprising removable. side-walls having corners shaped to form openings at the adjacent corners of a plurality of the side-walls, a spacing cor'e extending between oppositely disposed side-walls and formed 'withreduced portions fitting in the openings formed at the corners of adjacent sidewalls, and wedges applied to the ends' of the core to'lock the core;and side-walls together, substantially as described,

3. A sectional mold for concrete wall construction comprising removable side -walls formed with outwardly extending flanges, a spacing core passed transversely. through oppositely disposed walls at the junction of adjacent side-walls, flanged washers applied to the ends of the core and formed with slots receiving flanges of the side-walls, and

' wedges bearing against the washers and engaging parts of the core to draw the side walls edgewise together and lock the sidewalls and core in position, substantially as described.

4. A sectional mold for concrete wall construction comprising I removable side-walls formed with outwardly extending flanges, a spacing core passed transversely through oppositely disposed walls at the junction of position in which: will be placed to e-walls and the spac-" scribed.-

tion comprising adjacent side-walls, flanged washers applied to the ends of thecore and having interlocking engagement with the flan es of the side-walls, a bracing member app ied to the end flanges of adjacent side-walls, and I wedges engaging parts of the core to clamp the sidewalls, core and bracing member together, substuntiall as described.

5. A sectional mohl for concrete wall construction, comprising removable sectional side-walls having lateral flanges, clips straddling said flanges and having a threaded opening in one end, threaded bolts passing through the threaded opening of the clips, wedges inserted between one end of the clips and a flange of the wall, and a strap having a hinged connection with the bolts of adjacent sections of the walls -to permit one section to be swung from one position to another in relation to an adjacent section in ro 'ressive extension of the mold substantially as described.

6. A sectional mold for concrete wall construction comprising removable sidewalls, a vertically extending corner-block interposed between the 'ends of the side walls at corners of the wall, angle-plates secured to the corner-block, and wedges insorted within said angle-plates and bearing against the same and a part of the side-walls to lock together said walls and corner. block, substantially as described.

7. A sectional mold for concrete wall construction comprising oppositely disposed side-walls, a collapsible core inserted vertically between the oppositely disposed sidewalls, a cap covering the top of said core, and a strap passed through the cap and core and resting on the top of the side-walls tosuspend the core and lock the cap to the core, substantiallyas described.

8. A sectional mold for concrete wall construction comprising oppositely disposed side-walls, a collapsible core inserted between the oppositely disposed side-walls, a bar connected with said core and resting on the top of'the side-Walls and formed with a bent end, and a wedge inserted between a side,- wall and the bent end of-said bar to lock the bar and core in position, substantially as de- 9. A sectional mold for concrete construcsuperimposed oppositely disposed side-walls formed with outwardly extending flanges, a removable member extending transversely between the side-walls, a cross-bar to which said member is attached and formed with bent ends, -a block placed alongside the walls and formed. with a recess to receive a flange of the wall and-aslot l25 to receive meeting flanges of the wall, and wedges inserted between said blocks and bent ends of the crolls plate to bind .the parts together, substantiillly as described.

10. A scctionll'inold for concrete construc-- 13 0 .tion comprising op ositely disposed sidewalls formed wlt outwardly-extending flanges, a filling block inserted between the ends of adjacent Walls, a strap extending across the filling block and having ends turned inwardly to the Walls, and Wedges inserted between said inwardly turned ends and the outwardly extending flanges of the side-Walls to lock the \valls and block together, substantially as described.

11. In concrete construction, a support for ofplates having laterally extendingflanges at their meeting edges and corners shaped to form an opening atthe adjacent corners of a plurality of the plates, a core inserted in said opening and formed with ahead and a shoulder at difie1'entpoints,aflanged washer fitted to the core and having tapering slots engaging the flanges of the plates atthe eor- In testimony whereof I afiix my signature 25 in presence of two Witnesses. the concrete or cement comprlslng a number MILTON DANA MORRILL. Witnesses:

' FRED A. KLINGE,

Gianna W EADLIN Jr. 

